[llvm-branch-commits] [llvm] llvm-cov: Introduce `--merge-instantiations=<MergeStrategy>` (PR #121194)

[NAKAMURA Takumi via llvm-branch-commits]

chapuni wrote:

@yhgu2000 Could you elaborate? I expect you could understand to see tests and run this.

Note, this is incomplete for mcdc. See also #121196 to fill the gap.

https://github.com/llvm/llvm-project/pull/121194